Sustainable release of Mg(NO<sub>3</sub>)<sub>2</sub> from a separator boosts the electrochemical performance of lithium metal as an anode for secondary batteries

Xia, Shuang; Lin, Zhifeng; Peng, Bohao; Yuan, Xuelong; Du, Jingzhen; Yuan, Xinhai; Liu, Lili; Fu, Lijun; Holze, Rudolf; Wu, Yuping

doi:10.1039/d4ee01426j

Energy Environ. Sci.

2024

DOI: 10.1039/d4ee01426j

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Sustainable release of Mg(NO₃)₂ from a separator boosts the electrochemical performance of lithium metal as an anode for secondary batteries

Shuang Xia,

Zhifeng Lin,

Bohao Peng

et al.

Abstract: A separator, which can sustainably release Mg(NO3)2 into the electrolyte to ensure dendrite-free and long cycling of lithium metal batteries, is reported. This method is simple and efficient.

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Cited by 6 publications

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Solid‐State Electrolytes for Lithium Metal Batteries: State‐of‐the‐Art and Perspectives

Huang,

Li,

Jiang

et al. 2024

Adv Funct Materials

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The use of all‐solid‐state lithium metal batteries (ASSLMBs) has garnered significant attention as a promising solution for advanced energy storage systems. By employing non‐flammable solid electrolytes in ASSLMBs, their safety profile is enhanced, and the use of lithium metal as the anode allows for higher energy density compared to traditional lithium‐ion batteries. To fully realize the potential of ASSLMBs, solid‐state electrolytes (SSEs) must meet several requirements. These include high ionic conductivity and Li+ transference number, smooth interfacial contact between SSEs and electrodes, low manufacturing cost, excellent electrochemical stability, and effective suppression of dendrite formation. This paper delves into the essential requirements of SSEs to enable the successful implementation of ASSLMBs. Additionally, the representative state‐of‐the‐art examples of SSEs developed in the past 5 years, showcasing the latest advancements in SSE materials and highlighting their unique properties are discussed. Finally, the paper provides an outlook on achieving balanced and improved SSEs for ASSLMBs, addressing failure mechanisms and solutions, highlighting critical challenges such as the reversibility of Li plating/stripping and thermal runaway, advanced characterization techniques, composite SSEs, computational studies, and potential and challenges of ASS lithium–sulfur and lithium–oxygen batteries. With this consideration, balanced and improved SSEs for ASSLMBs can be realized.

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Solid‐State Electrolytes for Lithium Metal Batteries: State‐of‐the‐Art and Perspectives

Huang,

Li,

Jiang

et al. 2024

Adv Funct Materials

View full text Add to dashboard Cite

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Regulating the Manganese Valence State Improves the Kinetic Properties of Manganese‐Based Cathodes

Zhang,

Yuan,

Qin

et al. 2024

Adv Funct Materials

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Manganese (Mn)‐based lithium (Li)‐ion batteries with high energy density and low cost have recently attracted considerable attention. One drawback of Mn‐based batteries is the severe capacity attenuation caused by the Jahn‐Teller effect, which distorts the crystal structure and reduces the kinetics of Li‐ion insertion/extraction in the cathodes. In this study, the Mn valence state is regulated on the surface of Mn‐based oxide particles and oxygen vacancies are introduced to facilitate rapid Li‐ion transport and charge storage by adding succinonitrile (SN) to Mn‐based cathodes. Because of the reaction between SN and Mn‐based cathode particles, the contents of Mn3+ ions and oxygen vacancies increase, leading to an improvement in the Li‐ion kinetic properties of the cathodes as well as a reduction in the dissolution of Mn from the cathodes. By regulating the Mn valence state, Li‐ion and Li metal batteries with LiMn2O4 or Li‐rich Mn‐based layered oxide cathodes show significantly enhanced discharge capacity and improved cyclic performance. This study demonstrates that regulating the valence state of Mn ions is an effective strategy for enhancing the electrochemical performance of Mn‐based Li batteries and that adding SN to the cathodes is a cost‐effective method for mass production.

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A Separator with Double Layers Individually Modified by LiAlO₂ Solid Electrolyte and Conductive Carbon for High‐performance Lithium–Sulfur Batteries

Song,

Xia,

Wang

et al. 2024

Advanced Materials

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The “shuttle effect” and the unchecked growth of lithium dendrites during operation in lithium–sulfur (Li–S) batteries seriously impact their practical applications. Besides, the performances of Li–S batteries at high current densities and sulfur loadings hold the key to bridge the gap between laboratory research and practical applications. To address the above issues and facilitate the practical utilization of Li–S batteries, the commercial separator is modified with solid electrolyte (nanorod LiAlO2, LAO) and conductive carbon (Super P) to obtain a double coated separator (SPLAOMS). The SPLAOMS can physically barrier polysulfides and accelerate reaction kinetics. In addition, it enhances uniform lithium deposition, boosts ionic conductivity, and increases the utilization of active sulfur substances. The prepared Li–S batteries exhibit excellent cycling stability under harsh conditions (high sulfur loadings and high current densities) with an initial capacity of 733 mAh g−1 and a capacity attenuation of 0.03% per cycle at 5C in 500 cycle life. Under ultra‐high sulfur loading (8.2 mg cm−2), the prepared battery maintains a satisfactory capacity of 800 mAh g−1 during cycling, demonstrating enormous commercial application potential. This study serves as a pivotal reference for the commercialization of high‐performance Li–S batteries.

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Sustainable release of Mg(NO₃)₂ from a separator boosts the electrochemical performance of lithium metal as an anode for secondary batteries

Abstract: A separator, which can sustainably release Mg(NO3)2 into the electrolyte to ensure dendrite-free and long cycling of lithium metal batteries, is reported. This method is simple and efficient.

Cited by 6 publications

References 52 publications

Solid‐State Electrolytes for Lithium Metal Batteries: State‐of‐the‐Art and Perspectives

Solid‐State Electrolytes for Lithium Metal Batteries: State‐of‐the‐Art and Perspectives

Regulating the Manganese Valence State Improves the Kinetic Properties of Manganese‐Based Cathodes

A Separator with Double Layers Individually Modified by LiAlO₂ Solid Electrolyte and Conductive Carbon for High‐performance Lithium–Sulfur Batteries

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Sustainable release of Mg(NO3)2 from a separator boosts the electrochemical performance of lithium metal as an anode for secondary batteries

Abstract: A separator, which can sustainably release Mg(NO3)2 into the electrolyte to ensure dendrite-free and long cycling of lithium metal batteries, is reported. This method is simple and efficient.

Cited by 6 publications

References 52 publications

Solid‐State Electrolytes for Lithium Metal Batteries: State‐of‐the‐Art and Perspectives

Solid‐State Electrolytes for Lithium Metal Batteries: State‐of‐the‐Art and Perspectives

Regulating the Manganese Valence State Improves the Kinetic Properties of Manganese‐Based Cathodes

A Separator with Double Layers Individually Modified by LiAlO2 Solid Electrolyte and Conductive Carbon for High‐performance Lithium–Sulfur Batteries

Contact Info

Product

Resources

About

Sustainable release of Mg(NO₃)₂ from a separator boosts the electrochemical performance of lithium metal as an anode for secondary batteries

A Separator with Double Layers Individually Modified by LiAlO₂ Solid Electrolyte and Conductive Carbon for High‐performance Lithium–Sulfur Batteries